177,687 research outputs found
Dynamic response of large-diameter pipelines in seismic areas: particular cases
No full textBologna (Italia
Dynamic response of large-diameter pipelines in seismic areas: particular cases
No full textBologna (Italia
EDITORIAL. "New and view. Neuromuscular diseases from child to adulthood: new tools and new opportunities"
No full textEditoriale di apertura del volume di Acta Myologica che raccoglie i contributi presentati al convegno dal titolo PROCEEDINGS OF THE XXI CONGRESS OF THE ITALIAN SOCIETY OF MYOLOG
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Prediction of various observables for within covariant confined quark model
No full textIn 2020, the LHCb collaboration reported the exclusive branching fractions for the channels B0s→D(∗)−sμ+νμ for the very first time. In view of these observations, we have recently reported the form factors and branching fraction computations for these channels employing the covariant confined quark model. As different other channels corresponding to b→clνl have provided the hint for New Physics, the analysis of observables such as forward-backward asymmetry, longitudinal and transverse polarizations across the lepton flavours can serve as one of the important probes for the search for possible New Physics. In present work, we compute these observables for all the lepton flavours and compare our predictions with the other theoretical approaches
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
B and decays into three pseudoscalar mesons and the determination of the angle of the unitarity triangle
No full textWe reconsider two classical proposals for the determination of the angle gamma of the unitarity triangle: B^\pm => chi_{c0} \pi^\pm => \pi^+\pi^-\pi^\pm and B_s => rho^0 K_S => \pi^+ \pi^- K_S. We point out the relevance, in both cases, of non resonant amplitudes, where the \pi^+ \pi^- pair is produced by weak decay of a B^* (J^P=1^-) or B_0 (J^P=0^+) off-shell meson. In particular, for the B decay channel, the inclusion of the B_0 pole completes some previous analyses and confirms their conclusions, provided a suitable cut in the Dalitz plot is performed; for the B_s decay the inclusion of the B^*, B_0 amplitudes enhances the role of the tree diagrams as compared to penguin amplitudes, which makes the theoretical uncertainty related to the B_s => rho^0 K_S decay process less significant. While the first method is affected by theoretical uncertainties, the second one is cleaner, but its usefulness will depend on the available number of events to perform the analysis
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Erode e Pilato nella riscrittura esametrica di Giovenco (3,33-69 e 4,588-625)
No full textL'analisi dei due brani (3, 33-69 e 4, 588-625), condotta attraverso il confronto diretto dei versi giovenchiani con l'ipotesto biblico, permette di cogliere le caratteristiche della parafrasi: una sostanziale aderenza alla narratio evangelica, un'attenzione ai dettagli storici o dottrinali e un'approfondita utilizzazione, non solo meccanica, del modello virgiliano in particolare e più in generale dei testi classici
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